For your viewing pleasure, a new image archive from NASA is up online at NASA Images. I have a soft spot for the Apollo pictures, but it's hard to go wrong, even (especially?) with this picture of the crew of Apollo 11 in sombreros. That moment didn't make it into Moonshot, but you never can fit in everything.
EDIT: It’s been pointed out to me that this site has been up since the summer. What can I say? I stopped scouring for Apollo imagery in the spring, after the drawings for Moonshot were complete, so it seemed new to me when I first saw it last week. Good browsing, regardless!